World Championship leader Bartosz Zmarzlik extended his lead at the top of the SGP Standings with victory in Round 5 in Sweden.
It looked like the event could be cancelled with torrential rain delaying the start by almost two hours.
After a poor first race, Zmarzlik changed his bike and in Heat 9 produced the only win of the night from Gate 9.
Jack Holder was the leader after the 20 heats but was beaten by countryman Max Fricke in the first semi-final, while Zmarzlik beat Robert Lambert in a fantastic race in the second.
Opting to start from Gate 2, Zmarzlik was beaten to the first bend by Fricke but went wide and took the lead in the second lap and after a brief change of lead held on to win his first Grand Prix of the season.
The win sees Zmarzlik extend his lead to 18 points over second-place Holder in the season standings.